lib=libmymath.a

$(lib):mymath.o
	ar -rc $@ $^  
mymath.o:mymath.c
	  gcc -c $^
	
.PHONY:clean
clean:
	  rm -f *.o *.a lib
.PHONY:output
output:
	  mkdir -p  lib/include
		mkdir -p  lib/mymathlib
		cp *.h   lib/include
		cp *.a  lib/mymathlib

